Since commit 43a7206b0963 ("driver core: class: make class_register() take a const *"), the driver core allows for struct class to be in read-only memory, so move the ppp_class structure to be declared at build time placing it into read-only memory, instead of having to be dynamically allocated at boot time. Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Suggested-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Ricardo B. Marliere <ricardo@xxxxxxxxxxxx> --- drivers/net/ppp/ppp_generic.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index db1d11ae817b..fe380fe196e7 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -295,7 +295,9 @@ static void ppp_setup(struct net_device *dev); static const struct net_device_ops ppp_netdev_ops; -static struct class *ppp_class; +static const struct class ppp_class = { + .name = "ppp", +}; /* per net-namespace data */ static inline struct ppp_net *ppp_pernet(struct net *net) @@ -1394,11 +1396,9 @@ static int __init ppp_init(void) goto out_net; } - ppp_class = class_create("ppp"); - if (IS_ERR(ppp_class)) { - err = PTR_ERR(ppp_class); + err = class_register(&ppp_class); + if (err) goto out_chrdev; - } err = rtnl_link_register(&ppp_link_ops); if (err) { @@ -1407,12 +1407,12 @@ static int __init ppp_init(void) } /* not a big deal if we fail here :-) */ - device_create(ppp_class, NULL, MKDEV(PPP_MAJOR, 0), NULL, "ppp"); + device_create(&ppp_class, NULL, MKDEV(PPP_MAJOR, 0), NULL, "ppp"); return 0; out_class: - class_destroy(ppp_class); + class_unregister(&ppp_class); out_chrdev: unregister_chrdev(PPP_MAJOR, "ppp"); out_net: @@ -3549,8 +3549,8 @@ static void __exit ppp_cleanup(void) pr_err("PPP: removing module but units remain!\n"); rtnl_link_unregister(&ppp_link_ops); unregister_chrdev(PPP_MAJOR, "ppp"); - device_destroy(ppp_class, MKDEV(PPP_MAJOR, 0)); - class_destroy(ppp_class); + device_destroy(&ppp_class, MKDEV(PPP_MAJOR, 0)); + class_unregister(&ppp_class); unregister_pernet_device(&ppp_net_ops); } -- 2.43.0